The environment is a slightly modified version of the Hide and Seek quadrant environment (see section A.3 of [1]}): A team of 2 hiders is tasked to avoid line of sight from 2 seekers, and the seekers are tasked with keeping vision of the hiders. Agents can grab boxes and a ramp; the boxes can be locked in place. Hiders are given a preparation time at the beginning of the episode where the seekers are immobilized, giving the hiders a chance to run away or change the environment. Agents are given team-based rewards (hiders are given a per-time step reward of 1 if all hiders are hidden and -1 if any hider is seen by a seeker; seekers are given the opposite reward of hiders).
